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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Tethneus robustus was named by Petrunkevitch (1922). Its type specimen is MCZ 119, an exoskeleton, and it is a compression fossil. Its type locality is Florissant (MCZ Collection), which is in a Chadronian lacustrine - large shale in the Florissant Formation of Colorado.
Synonymy list
| Year | Name and author |
|---|---|
| 1922 | Tethneus robustus Petrunkevitch p. 266 fig. 32 |
| 2013 | Tethneus robustus Dunlop et al. p. 162 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Tethneus robustus Petrunkevitch 1922
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Bush and Bambach 2015 | |||||
Age range: Chadronian or 37.00000 to 33.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chadronian | USA (Colorado) | Tethneus robustus (type locality: 106384) |